2006 Audi S4 vs. 2005 Opel Astra
To start off, 2006 Audi S4 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 Opel Astra. In addition, the cost of maintenance, including insurance, on 2005 Opel Astra would be higher. At 4,162 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 216 more horse power than 2005 Opel Astra. (123 HP @ 4000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2005 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Astra weights approximately 110 kg more than 2006 Audi S4.
Because 2006 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Opel Astra. In wet, icy, snow, or gravel driving conditions, 2006 Audi S4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Audi S4 (410 Nm @ 3500 RPM) has 129 more torque (in Nm) than 2005 Opel Astra. (281 Nm @ 1500 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Opel Astra.
Compare all specifications:
| 2006 Audi S4 | 2005 Opel Astra | |
| Make | Audi | Opel |
| Model | S4 | Astra |
| Year Released | 2006 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 4162 cc | 2172 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 339 HP | 123 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 410 Nm | 281 Nm |
| Torque RPM | 3500 RPM | 1500 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 98 mm |
| Fuel Type | Gasoline | Diesel |
| Acceleration 0-100mph | 5.9 seconds | 9.9 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1275 kg | 1385 kg |
| Vehicle Length | 4590 mm | 4270 mm |
| Vehicle Width | 1730 mm | 1720 mm |
| Vehicle Height | 1430 mm | 1400 mm |
| Wheelbase Size | 2650 mm | 2530 mm |
| Fuel Consumption Overall | 12.3 L/100km | 6.3 L/100km |
| Fuel Tank Capacity | 63 L | 52 L |
